Rotary disk



Jam. W, W28 1,65,,fl22 A. E. snow ROTARY DISK Filed Dec. 27. 1926Patented Jan. 10, 1928.

UNITED STATES v 1,656,022 PATENT OFFICE.

AUGUSTUSB. SCOTT, OF LONG BEACH, CALIFORNIA, ASSIGNOR TO SCOTT SUPREMEOIL TOOL COMPANY, OF SANTA ANA, CALIFORNIA, A CORPORATION OF CALIFORNIA.

ROTARY DISK.

Application filed December 27, 1926. Serial No. 157,018.

This invention relates to deep well apparatus, artesian, oil or thelike, and more particularly to disks adapted tobe applied to a rotarydisk bit.

It is an object of this invention to provide a rotary disk havingalternate horizontal and vertical teeth on the periphery thereof,whereby a cutting and scooping operation is performed in the well as thedisk rotates.

Another object of this invention is to provide a disk which is strong,durable and cflicient in itsaction and is well adapted to perform theservices required of it.

With the foregoing and other objects in view which will be made manifestin the following detailed description .and specifically pointed out inthe appended claims,

referenceis had to the accompanying drawin s for an illustrativeembodiment of the b n h invention, wherein Figure 1 is a front elevationof a pair of my disks as applied to the conventional type of rotary diskbit,

Fig. 2 is a plan view of one of my 1mproved disks, and

Fig. 8 is a side elevation partly in section of my rotary disk.

Referring to the accompanying drawings wherein similar referencecharacters desig nate similar parts throughout, 1 designates my rotarydisk as an entirety. This disk is substantially cup-shaped and isprovided with an aperture therethrough designated at 2 whereby the samemay be applied to a rotary disk bit. A plurality of pointed elongatedcutting teeth are formed onthe periphery of this disk. These teeth aredesignated at 3 and one of the same is shown in section in Fig. 3.tially curved and pointed as at 4t and are formed integral with the diskand the teeth have one surface thereof formed as a continuation of theouter surface of the disk whereas the other surface thereof is cuppe andis provided with a gentle curve as at 5 gradually merging into a longradius of lid These teeth are substan-.

dicular to the same and are not concaveconvex in form as are the teeth3. The teeth 6 are provided with a pair of reinforcing ribs 7 and 8 asshown clearly in Figs. 2 and 3 to prevent breaking of the same. Theextreme outer points on the teeth 3 and on the teeth 6 are locatedsubstantially on the same peripheral circunn ferenee, that is, they areequidistant from the center of the disk.

In actual operation my improved disk provides for cutting and scoopingaction within a well. When the disk bit B is lowered into the well withthe disks thereon and operation is commenced, the teeth 3 the earth orformation it cuts in two directions and unlike the disks now used inactual practice it leavesno cone or center in the bottom of the wellwhich it is drilling. Furthermore, disks which embody the principles ofmy invention prevent the drilling of a crooked well. On penetrating asloping or slanting formation, such as limestone or hard shale, the diskwill not cut off center as the weight of the drill stem will hold it enthe hard formation.

It is obvious therefore that I have provided a disk which will performeficiently the operation of drilling, which is adapted for heavy dutyand which is not likely to break in the well.

It will be understood that various changes in the detail of constructionmay be made without departing from the spirit and scope of the inventionas defined by the appended claims.

I claim:

1. A. cutting disk comprising an combination a substantially cup-shapedmember, teeth having line edges on the peri hery thereof, certain ofsaid teeth havirg engitudinal axes perpendicular to the direction of the)GI'PGHdlOUlflI' axis of the disk, others of sai teeth havinglongitudinal axes parallel to the perpendicular axis of the disk.

2. A cutting disk comprising in combination a cup-shaped member, teethhaving line edges on. the periphery of said cup-shaped member, saidteeth havin longitudinal axes parallel to the erpendicu ar axis of thedisk, and webs rein orcing said teeth.

v mentioned teeth, the outer extremities of said teeth being arranged onthe same marginal circumference.

4. A cutting disk having teeth on the pe riphery thereof, said teethhaving line edges, certain of said teeth being arranged at an angle tothe axis of the disk and others of said teeth being arranged parallel tothe said axis.

5. A cutting disk having teeth on the pe riphery thereof, said teethhaving line edges, certain of said teeth having their longitudinal axesin the plane of the disk, and others of said teeth having theirlongitudinal axes at an angle to said plane.

6. A cutting disk having teeth on the periphery thereof, said teethhaving line edges, certain of said teeth having their longitudinal axesin the plane of thedisk, others of said teeth having their longitudinalaxes perpendicular to said plane.

7. A cutting disk comprising in combination a substantially cup-shapedmember,

teeth having line edges on the periphery thereof, said teeth havingtheir longitudinal axes alternately disposed perpendicular to thedirection of the'perpendieular axis of the disk and parallel to theperpendicular axis of the'disk. y

8. A device as claimed in claim 7, and in addition, ribs reenforcing theteeth, the longitudinal axes of which are parallel to the perpendicularaxis of the disk.

9. A cutting disk having teeth on the periphery thereof, said teethhaving line edges, said teeth having their longitudinal axes alternatelyperpendicular to the direction of the axis of the disk, and pendicularaxis of the dis 10. A device as claimed in claim 9, and in addition,ribs reenforcing the teeth which have their longitudinal axes parallelto the perpendicular axis of the disk.

11. A device as claimed in claim 9, and in addition, ribs reenforeingthe teeth which have their longitudinal axes parallel to theperpendicular axis of the disk, all of said teeth having their outerextremities arranged on the same marginal cylinder of to tation.

12. A cuttingdisk having teeth with line edges on the periphery thereof,said teeth having their longitudinal axes alternately in the plane ofthe disk and perpendicular to the plane of the disk.

13. A cutting disk having teeth with line edges on the peripherythereof, said teeth having their axes alternately in the plane of thedisk and at an angle to said plane.

14. A rotar Y disk having two sets of peripheral teeth disposed in thesame plane and provided with cutting edges, the cutting edges of eachset of teeth being parallel to one another, and the cutting edges of theteeth of one set being at a substantial angle to the cutting edges ofthe teeth of the other set.

15. A rotary disk having two sets of peripheral teeth provided withcutting edges, the cutting edges of each setof teeth being parallel toone another, the cutting edges of the teeth of one set being at asubstantial angle to the cutting edges of the teeth of the other set,and the teeth of one set alternating with the teeth of the other set.

In testimony whereof I have signed my name to this specification.

AUGUSTUS B. SCOTT.

parallel to the perr

